5pcs ESP-12F AC/DC Power Supply ESP8266 AC90-250V/DC7-12V/USB5V WIFI Single Relay Module Development Board
$56.39

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5pcs ESP-12F AC/DC Power Supply ESP8266 AC90-250V/DC7-12V/USB5V WIFI Single Relay Module Development Board

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Product Description

Feature:

1. On-board mature and stable -12F WIFI module, large capacity 4M Byte Flash

2. The I / O port and UART program download port of the WiFi module are all exported, which is convenient for secondary development.

3. On-board AC-DC switching power supply module, power supply mode supports AC90-250V / DC7-12V / USB5V

4. On-board WIFI module RST reset button

5. -12F supports the use of development tools such as Eclipse / for Arduino IDE, and provides reference programs under the for Arduino development environment.

6. One 5V relay on board, output switching signal, suitable for controlling load with working voltage within AC250V / DC30V

7. Onboard power indicator, 1 programmable LED and relay indicator

Function:

1. L, N: AC90-250V power supply

2. AC90-250V to DC5V switching power supply (Do not touch here directly with your hand when using AC power supply !!!)

3. VCC, GND: DC7-12V power supply;

4. USB: DC5V USB power supply;

Note: AC90-250V, DC7-12V, DC5VUSB can be selected as one of the three power supply methods.

5. 6X6mm button: 8266 reset button;

6. UART program download port: GND, RX, TX, 5V of 8266 are connected to GND, TX, RX, 5V of the external TTL serial module rectively. IO0 must be connected to GND when downloading, and then disconnected connection;

7. GPIO pin out port;

8. Relay output:

Normally closed end, the relay is short-circuited to COM before pull-in, and suspended after pull-in;

COM: public end;

NO: Normally open, the relay is suspended before the pull-in, and shorted to COM after the pull-in.

9. Power indication LED;

10. Programmable LED;

11. Relay Indication LED: Lights up during pull-in.

Introduction to GPIO terminal:

Number	Name	Function	Number	Name	Function
1	GND	Power ground	13	IO10	GPIO10
2	Relay	The relay drive port is driven by IO5 by default. If you want to use other I / O to drive the relay, you can remove R14, and then connect the I / 0 of the drive relay to this Relay pin	14	MISO	Slave output input
3	IO2	GPIO2; UART1_TXD	15	IO13	GPIO13; HSPI_MOSI; UART0_CTS
4	IO4	GPIO4	16	IO14	GPI014; HSPI_CLK
5	RX	UART0_RXD; GPIO3	17	ADC	A / D conversion result. Input voltage 0 ~ 1V, value : 0 ~ 1024
6	3V3	3.3V power supply	18	3V3	3.3V power supply
7	SCLK	clock	19	MOSI	output Slave input
8	IO15	GPIO15; MTD0; HSPICS; UART0_RTS	20	IO9	GPIO9
9	IO0	GPIO0	21	CS0	Chip Select
10	IO5	GPIO5	22	IO12	GPIO12; HSPI_MIS0
11	TX	UARTO_TXD; GPIO1	23	IO16	GPIO 16
12	5V	5V power supply	24	GND	Power ground

Package includes:

5 x Development Board

More Detailed Photos:

Additional Information

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Airmail and Airmail Registered	Area	Time
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	Italy, Brazil, Russia	10-45 business days
	Other countries	10-35 business days
Expedited Shipping	7-15 business days to Worldwide